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Two new species of the lichenized genus Lasioloma (Byssolomataceae) from Asia

Published online by Cambridge University Press:  13 February 2023

Wei-Cheng Wang Open the ORCID record for Wei-Cheng Wang [Opens in a new window] ,
Azlan Abas Open the ORCID record for Azlan Abas [Opens in a new window] ,
Xin-Li Wei ,
Xu Qian  and
Jiang-Chun Wei
Wei-Cheng Wang
Affiliation:
School of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China
Azlan Abas
Affiliation:
Centre for Research in Social, Development and Environment (SEEDS), Faculty of Social Sciences and Humanities, Universiti Kebangsaan Malaysia (UKM), Bangi, Malaysia
Xin-Li Wei
Affiliation:
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
Xu Qian
Affiliation:
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing 100049, China
Jiang-Chun Wei*
Affiliation:
State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing 100049, China
*
Author for correspondence: Jiang-Chun Wei. E-mail: weijc2004@126.com
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Abstract

Two new species of the lichenized genus Lasioloma are described from Asia: Lasioloma longiramosum W. C. Wang & A. Abas (collected from Malaysia), is characterized by a distinct woolly prothallus between dispersed thallus patches, comparatively small, muriform ascospores, long filiform conidia (main branch 22–28 μm in length, the other three branches 65–80 μm) and a foliicolous habitat; L. verrucosum W. C. Wang & X. L. Wei (collected from China), is characterized by a warted thallus, filiform conidia (main branch 22–32 μm in length, the other three branches 50–65 μm) and a corticolous habitat. The placement of both new species was confirmed by a molecular phylogenetic approach based on combined ITS, mtSSU and mtLSU sequences, and both are compared in detail to other similar species of the genus. Our study also revealed that the length of the conidial branches, which has not been explored in previous studies, should be regarded as an important feature for species delimitation in Lasioloma.

Keywords

Chinaconidiafoliicolous lichensMalaysiamtLSU
Type
Standard Paper
Information
The Lichenologist , Volume 55 , Issue 1 , January 2023 , pp. 27 - 33
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Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of the British Lichen Society

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